| Bryozoans | Amathia verticillata | None | Definite | Established | Hull Fouling |
| Crustaceans-Barnacles | Amphibalanus amphitrite | 1994 | Definite | Established | Ballast Water, Hull Fouling, Natural Dispersal |
| Crustaceans-Barnacles | Amphibalanus reticulatus | 2009 | Definite | Established | Ballast Water, Hull Fouling |
| Arthropoda-Insects | Anisolabis maritima | 1968 | Definite | Established | Cargo, Dry Ballast |
| Tunicates | Ascidia sydneiensis | 2009 | Definite | Established | Hull Fouling |
| Crustaceans-Barnacles | Balanus trigonus | 1992 | Definite | Established | Hull Fouling |
| Fishes | Butis koilomatodon | 2001 | Definite | Established | Ballast Water |
| Cnidarians-Anthozoans | Carijoa riisei | None | Definite | Established | Hull Fouling |
| Crustaceans-Crabs | Charybdis hellerii | 2000 | Definite | Established | Ballast Water, Natural Dispersal |
| Cnidarians-Hydrozoans | Cordylophora caspia | None | Definite | Established | Hull Fouling |
| Tunicates | Didemnum perlucidum | 2009 | Definite | Established | Hull Fouling |
| Mollusks-Gastropods | Eualetes tulipa | 2005 | Definite | Established | Habitat Restoration |
| Algae | Halimeda opuntia | None | Definite | Established | None |
| Crustaceans-Ostracods | Kotoracythere inconspicua* | 1980 | Definite | Established | Ballast Water, Dry Ballast, Hull Fouling |
| Crustaceans-Shrimp | Macrobrachium rosenbergii | 1997 | Definite | Established | Fisheries Accidental (not Oyster) |
| Mollusks-Gastropods | Melanoides tuberculata | 2005 | Definite | Established | Pet Release |
| Fishes | Omobranchus punctatus | 2008 | Definite | Established | Ballast Water, Hull Fouling |
| Echinoderms | Ophiothela mirabilis | 2014 | Definite | Established | None |
| Fishes | Oreochromis niloticus* | 2023 | Definite | Established | None |
| Crustaceans-Isopods | Paracerceis sculpta | None | Definite | Established | Ballast Water, Hull Fouling |
| Cnidarians-Scyphozoans | Phyllorhiza punctata | 2003 | Definite | Established | Ballast Water, Hull Fouling |
| Fishes | Pterois volitans | 2020 | Definite | Established | Natural Dispersal |
| Crustaceans-Isopods | Sphaeroma walkeri | 1958 | Definite | Established | Ballast Water, Hull Fouling |
| Tunicates | Styela canopus | 2009 | Definite | Established | Hull Fouling |
| Cnidarians-Anthozoans | Tubastraea coccinea | 0 | Definite | Established | None |
| Cnidarians-Anthozoans | Tubastraea tagusensis | None | Definite | Established | Hull Fouling |